Washington, D.C., is waking up warm and mostly clear, with temperatures around 73°F at Reagan National this morning. Forecasters expect highs to jump into the mid 90s on Sunday, June 14, making this one of the hottest days so far this summer. A frontal system sliding in later today will bring a chance of showers and scattered thunderstorms from late afternoon into the evening. Some storms could turn severe and produce damaging wind gusts, so be ready to move outdoor plans inside if you see storms strengthening.
Afternoon Storm Window
Showers and isolated thunderstorms become more likely after about 5 p.m., with coverage increasing into the evening as a cold front approaches. According to the NWS forecast discussion, damaging straight line winds are the main concern, and stronger cells could produce gusts of 60 to 70 mph. The Storm Prediction Center has the region in a Slight Risk for severe storms. Small Craft Advisories are posted for portions of the Chesapeake and Potomac beginning at 11 a.m. and may last into Monday morning as gusty southerly winds and thunderstorms rough up the waters.
Boaters and Commute Impacts
Boaters should steer clear of open water this afternoon, since choppy conditions, sudden hazardous gusts, and lightning can develop quickly in thunderstorms. On land, expect brief heavy downpours and frequent lightning that could trigger short Metro or bus delays and spotty power outages, so build in a little extra time for the evening commute. Secure patio furniture and any loose outdoor items before you head out so they do not become airborne when the gusts roll through.
Looking Ahead
Monday, June 15 looks noticeably cooler and drier, with highs near 79°F and northwest winds around 15 mph giving the region a break from the humidity. Forecasters expect the pattern to turn warm and humid again later in the week, with another chance for strong to severe storms around Thursday, June 18. For background on the quick swing from heat to storms, see D.C. turns into a steam bath.
What You Should Do
Check radar and any watches before traveling this afternoon, and move outdoor events indoors if storms begin to organize. For the latest watches, warnings, and marine advisories, follow the National Weather Service and local officials.
